321 Stainless Steel Round Bars Rod.Round steel refers to a solid long strips of steel with a circular cross-section. The material of round steel is generally made of first-grade steel, which has very good plasticity. It is used in a large amount in industry and is used less in construction projects. The specifications of round steel are mainly expressed in millimeters of diameter, for example, "50" means a round steel with a diameter of 50 mm.The round steel is classified according to the production process: it is divided into three types: hot rolling, forging and cold drawing. The pressure processing method in which the cross section of the material is reduced and the length is increased, which is the most common production method for producing steel, is mainly used to produce profiles, plates and pipes. Divided into hot-rolled and cold-rolled. The size of hot rolled round bar is 5.5-250 mm. Among them: small round bars of 5.5-25 mm are mostly supplied in bundles of straight strips,…